Treasure Cove TC-1013 Fortune Finder Sand and Surf Metal Detector Ferrous/non-ferrous discriminator distinguishes iron and steel (ferrous) from silver & gold (non-ferrous) Adjustable sensitivity, discrimination and ground-balance controls; Automatic or manual tuning Ultra-lightweight, ergonomic construction with padded handle, arm, support & extendable metal shaft for comfort 3 distinctive tones indicate different types of metal Waterproof search coil, Low battery indicator and 1/8-inch headphone jack